Rolling mill



C. SCHMIDT Jan. l, 1935.

ROLLING MILL Filed'sept. s, 1932 2 sheets-sheet 1 C. 9g/umidi by M,

Jan. l, 1935. c. SCHMIDT 1,986,485

ROLLING MILL Y Filed Sept. 8, 1932 2 Sheets-Sheet 2 Inventor f' Anya.

Patenrted'Jan. l, i935 UNITED STATES PATENT oFF-ICE september :,L 1m, serial No. essaie InGennany September 18, 1931 e aan. (ci. se-ie) Innims ofthe aforesaid type usheretotore, the platen and the rolls are driven.

It is an objectA ofmy invention to improve the mill.

TothisendId/riveonlytherollsandnotthe thatinamillaccordingtomy rollsandanidleplaten, canbeexerted platen.

Fig. 1 is an elevation. and Y Fig. 2 is a plan' view, oi' the complete mili. lligs.3and4arepartelevationsillustrating twostagesofrollinga'ilatdisktrom a blank,

of a disk having a dat face tapered face on the other, sections of-cups, and

oi -a hub-and-dlsk wheel,

on one side. and a Figs. 8 and 'l are Fig. 8 is a section all to`be rolled on myimpmved mill.

-the drawings. and Figs. 1 'and 2,- A is hollow column ion the frame (not shown) of the milland 1 is the platen which is mounted to rotate idly in a bearing il at the upper end of the'oolumn A.

blank or block on the platen l, and are work-supporting pins for holding tnepistotneblankn;

8are'apairofuprightsontheframeot'the mill, andi'lis a bridge or 'is the` l mens of its work will now be described.

the Platen are driven, much higher rolling pressures can be exerted, and blanks oi' considerable 25 thickness be rolled into thin disks or other secwithout sticking of the rolls or the platen. The old mill is operative at low pressures only and sticks if the pressure is increased beyond its low limit. The deformation of the work per 3"l operation is small in proportion, and therefore the old mili requires many operations, each at low pressure, in order to obtain a given detomation. But even ii' this is done, there is no safesul ing therefrom. Moreover, the nealing deteriorates the'material.'

Sticking and the distortion of the work result-A ing therefrom are avoided in the mill according and the 35 frequent anv be arranged without dimculty,

Not only disks 'with parallel or' tapered faces' can be rolled from a blank with my mill, but also cups, troughs, and the like, and some speci- Referring ilrsi'. to Figs.f3 and 4, these showone'oi' thev initial' stages of the'rolling operation, and its ilnal stage, respectively. At the beginoi' the operation, the bridge 7 is lowered to bring the mnntqrearonthebmnknrne 5i rolls are displaced and the fiat disk B' rolls are rotated and moved apart in the direction of arrows C by their bearings 3, while the bridge 'I is lowered in the direction of the downwardlypointing arrows D. The bridge and the in parallel directions only shown in Fig. 4 isobtained. I may so design the bearings 3 and/or their guides 3 that ,the axes of the rolls 2 are at an angle to each other if the bearings or guides are suitably adjusted. Means for adjusting the bearings 3 on their blocks 13 are shown in Fig. 2. Theaxes may be set at an angle permanently, i. e., the axes may remain at this angle throughout the operation and any suitable means, no t shown, may be provided holding the bearings -in' the position into which they have been moved. With this setting of the axes, the section B2 in Fig. 5 is obtained. This section has a at lower, and a tapered upper face. By maintaining the axes in a straight line for the major ing their inclination at the ends while raising thebridge '1, the section B3 in Fig. 6 is obtained. This is a cup resembling a trough. The spherical cup B4 inFig. 'I is obtained by varying the inclination lof the roll axes throughout the operation and gradually raising the bridge '1. A

Obviously, a great variety oi? sections may be obtained by suitably varying the inclination of the axes and raising and lowering the bridge '1. The hub-and-disk Wheel, Fig. 5, is obtained by raising and lowering the bridge 'I without varying the position of the roll axes, so that the secltion is defined exclusively by straight lines at lright angles to each other. Inclined or curved portions of the section are obtained in the manner described by varying the angle of the roll axes.

I claim: n 1. In a mill for rolling revolution bodies from blanks, a. blank-supporting, revoluble, idle plat# part of the operation and gradually vary-` working rolls,'and means -to the blank supported on LeemansA en, and a pair ofopposed driven blank-working rolls which are adapted to be traversed and retraversed over said platen towards andaway from the center of the latter.

2.'. In a mill for rolling revolution bodies from blanks, a blank-supporting, revoluble, idle plat- Y en, means arranged in line with the axis said platen revolves about, for holding the blank on said platen, and a pair of Adiametrally opposed driven blank-working rolls which are adapted to be traversed and retraversed over said platen.

3. In a mill for rolling revolution bodies from blanks, a blank-supporting, revoluble, idle platen, a bridge mounted for displacement in parallel to the .axis of -said platen, av pair of bearings mounted to slide in said bridge at opposite sides of said platen, a shaft in each bearing, and a driven blank-working roll on each shaft.

4. In a mill for rolling revolution bodies from blanks, a blank-supporting, revoluble, idle platen, a bearing on which said platen is mounted to revolve, an abutment for holding said platen against axial displacement in the direction o! the rolling pressure, and a pair of opposed driven blank-working rolls which are adapted to be traversed and retraversed over said platen.

A 5. In a mill for rolling revolution bodies from blanks, a blank-supporting, revoluble, idle plat# Aen, a bridge mounted for displacement in parallel to the axis of said platen, a pair of blocks mounted to slide on said bridge at opposite sides of said platen, a bearing fulcrumed on each slide, a shaft in each bearing,

6. In a mill for rolling revolution blanks, a blank supporting platen mounted to revolve idly, a pair of opposedv power driven to guide the' movement of said rolls .in a direction substantially radialsaid platen.

CARL SCHMIDT.

bodies from` and a driven blank- ,working roll on each shaft. 

